Format

java.lang.Object
- ohos.media.common.Format

```
public class Format
extends Object
```
Saves and sets media metadata, such as the media playback duration.

从以下版本开始:

1

SystemCapability

SystemCapability.Multimedia#MEDIA

嵌套类概要

嵌套类
限定符和类型	类	说明
`static class`	`Format.FormatArrays`	Saves key-value pairs in the format list created based on the `formatMap` object.
`static class`	`Format.Key<T>`	Defines types of codec property keys.

字段概要

字段
限定符和类型	字段	说明
`static String`	`AAC_PROFILE`	Indicates the Advanced Audio Coding (AAC) profile.
`static String`	`AUDIO_AAC`	Indicates the AAC audio type represented by an MIME string.
`static String`	`AUDIO_AC3`	Indicates the AC3 audio type represented by an MIME string.
`static String`	`AUDIO_AMR_NB`	Indicates the AMR-NB audio type represented by an MIME type string.
`static String`	`AUDIO_AMR_WB`	Indicates the AMR-WB audio type represented by an MIME string.
`static String`	`AUDIO_EAC3`	Indicates the EAC3 audio type represented by an MIME string.
`static String`	`AUDIO_FLAC`	Indicates the FLAC audio type represented by an MIME string.
`static String`	`AUDIO_G711_ALAW`	Indicates the G.711 A-law audio type represented by an MIME string.
`static String`	`AUDIO_G711_MLAW`	Indicates the G.711 M-law audio type represented by an MIME string.
`static String`	`AUDIO_MPEG`	Indicates the MPEG audio type represented by an MIME string.
`static String`	`AUDIO_OPUS`	Indicates the OPUS audio type represented by an MIME string.
`static String`	`AUDIO_RAW`	Indicates the RAW audio type represented by an MIME string.
`static String`	`AUDIO_VORBIS`	Indicates the VORBIS audio type represented by an MIME string.
`static String`	`BIT_RATE`	Indicates a key that describes the bit rate.
`static String`	`BITRATE_MODE`	Indicates the bit rate mode to be used by the encoder.
`static String`	`CAPTURE_RATE`	Indicates a key that describes the video capture rate.
`static String`	`CHANNEL`	Indicates a key that describes the number of audio channels.
`static String`	`COLOR_MODEL`	Indicates a key that describes the video color format.
`static Format.Key<Scope<Integer>>`	`COMPLEXITY_SCOPE`	Indicates the key of the encoding complexity range of the codec.
`static String`	`DURATION`	Indicates a key that describes the content duration (in microseconds).
`static String`	`FRAME_INTERVAL`	Indicates a key that describes the I-frame interval.
`static String`	`FRAME_RATE`	Indicates a key that describes the video frame rate.
`static Format.Key<Scope<Double>>`	`FRAME_RATE_SCOPE_FOR_SPECIFIC_SIZE`	Indicates the key of the frame rate range supported by the codec for a specific video size.
`static String`	`HEIGHT`	Indicates a key that describes the video height.
`static Format.Key<Integer>`	`HEIGHT_ALIGNMENT`	Indicates the key of the height alignment parameter of the codec.
`static Format.Key<Scope<Integer>>`	`HEIGHT_SCOPE`	Indicates the key of the video height range supported by the codec.
`static String`	`IS_AUTOSELECT`	Indicates the key of whether the current stream is automatically selected.
`static String`	`IS_DEFAULT`	Indicates the key of whether the current media stream is selected by default.
`static String`	`IS_FORCED_SUBTITLE`	Indicates the key of whether the current subtitle stream is forcibly displayed.
`static String`	`KEY_BIT_RATE_SCOPE`	Indicates the key of a bit rate range.
`static String`	`KEY_FRAME_RATE_SCOPE`	Indicates the key of a frame rate range.
`static String`	`KEY_HEIGHT_SCOPE`	Indicates the key of a height range.
`static String`	`KEY_SAMPLE_RATE_LIST`	Indicates the key of a sampling rate list.
`static String`	`KEY_SAMPLE_RATE_SCOPE`	Indicates the key of a sampling rate range.
`static String`	`KEY_WIDTH_SCOPE`	Indicates the key of a width range.
`static String`	`LANGUAGE`	Indicates the key of a language type.
`static String`	`MAX_HEIGHT`	Indicates a key that describes the maximum video height supported by a decoder.
`static String`	`MAX_INPUT_SIZE`	Indicates a key that describes the maximum input buffer size.
`static Format.Key<Integer>`	`MAX_INSTANCES`	Indicates the key of the maximum number of `codec` instances that can run concurrently.
`static String`	`MAX_WIDTH`	Indicates a key that describes the maximum video width supported by a decoder.
`static String`	`MIME`	Indicates a key that describes the Multipurpose Internet Mail Extensions (MIME) media type.
`static String`	`MIME_AUDIO_MSGSM`	Indicates the MSGSM audio type represented by an MIME string.
`static String`	`MIME_VIDEO_AV1`	Indicates a video MIME type.
`static String`	`SAMPLE_RATE`	Indicates a key that describes the sampling rate.
`static String`	`VIDEO_AVC`	Indicates a key that describes the Advanced Video Coding (AVC) MIME type.
`static String`	`VIDEO_DOLBY_VISION`	Indicates the Dolby Vision video type represented by an MIME string.
`static String`	`VIDEO_H263`	Indicates the H.263 video type represented by an MIME string.
`static String`	`VIDEO_HEVC`	Indicates the HEVC video type represented by an MIME string.
`static String`	`VIDEO_MPEG2`	Indicates the MPEG-2 video type represented by an MIME string.
`static String`	`VIDEO_MPEG4`	Indicates the MPEG-4 video type represented by an MIME string.
`static String`	`VIDEO_RAW`	Indicates the RAW video type represented by an MIME string.
`static String`	`VIDEO_VP8`	Indicates the VP8 video type represented by an MIME string.
`static String`	`VIDEO_VP9`	Indicates the VP9 video type represented by an MIME string.
`static String`	`WIDTH`	Indicates a key that describes the video width.

构造器概要

构造器
构造器	说明
`Format()`	Default constructor used to create a `Format` instance.
`Format(HashMap<String,Object> nativeMap)`	A constructor used to create a `Format` instance.
`Format(Map<String,Object> map)`	A constructor that creates a `Format` instance.

方法概要

所有方法实例方法具体方法
限定符和类型	方法	说明
`double`	`getDoubleValue(String key)`	Obtains a metadata value of the double floating-point type.
`float`	`getFloatValue(String key)`	Obtains a metadata value of the floating-point type.
`Format.FormatArrays`	`getFormatArrays()`	Creates a `FormatArrays` instance with `formatMap` key-value pairs.
`HashMap<String,Object>`	`getFormatMap()`	Obtains all metadata.
`int`	`getIntValue(String key)`	Obtains a metadata value of an integer type.
`long`	`getLongValue(String key)`	Obtains a metadata value of the long integer type.
`Object`	`getObjectValue(String key)`	Obtains a metadata value of the Object type.
`String`	`getStringValue(String key)`	Obtains a metadata value of the character string type.
`boolean`	`hasKey(String key)`	Checks whether a metadata key exists.
`void`	`putDoubleValue(String key, double value)`	Sets metadata of the double floating-point type.
`void`	`putFloatValue(String key, float value)`	Sets metadata of the floating-point type.
`void`	`putIntValue(String key, int value)`	Sets metadata of the integer type.
`void`	`putLongValue(String key, long value)`	Sets metadata of the long integer type.
`void`	`putObjectValue(String key, Object value)`	Sets metadata of the character Object type.
`void`	`putStringValue(String key, String value)`	Sets metadata of the character string type.
`void`	`setObjectFormat(String key, Object value)`	Sets metadata of the character Object type.
`String`	`toString()`	Returns the encoded string representation of Format.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- 字段详细资料
  - AAC_PROFILE
```
public static final String AAC_PROFILE
```
    Indicates the Advanced Audio Coding (AAC) profile.
    
    从以下版本开始:
    
    3
    
    另请参阅:
    
    常量字段值
  - AUDIO_AAC
```
public static final String AUDIO_AAC
```
    Indicates the AAC audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_AC3
```
public static final String AUDIO_AC3
```
    Indicates the AC3 audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_AMR_NB
```
public static final String AUDIO_AMR_NB
```
    Indicates the AMR-NB audio type represented by an MIME type string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_AMR_WB
```
public static final String AUDIO_AMR_WB
```
    Indicates the AMR-WB audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_EAC3
```
public static final String AUDIO_EAC3
```
    Indicates the EAC3 audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_FLAC
```
public static final String AUDIO_FLAC
```
    Indicates the FLAC audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_G711_ALAW
```
public static final String AUDIO_G711_ALAW
```
    Indicates the G.711 A-law audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_G711_MLAW
```
public static final String AUDIO_G711_MLAW
```
    Indicates the G.711 M-law audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_MPEG
```
public static final String AUDIO_MPEG
```
    Indicates the MPEG audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_OPUS
```
public static final String AUDIO_OPUS
```
    Indicates the OPUS audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_RAW
```
public static final String AUDIO_RAW
```
    Indicates the RAW audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - AUDIO_VORBIS
```
public static final String AUDIO_VORBIS
```
    Indicates the VORBIS audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - BITRATE_MODE
```
public static final String BITRATE_MODE
```
    Indicates the bit rate mode to be used by the encoder.
    
    从以下版本开始:
    
    3
    
    另请参阅:
    
    常量字段值
  - BIT_RATE
```
public static final String BIT_RATE
```
    Indicates a key that describes the bit rate.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - CAPTURE_RATE
```
public static final String CAPTURE_RATE
```
    Indicates a key that describes the video capture rate.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - CHANNEL
```
public static final String CHANNEL
```
    Indicates a key that describes the number of audio channels.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - COLOR_MODEL
```
public static final String COLOR_MODEL
```
    Indicates a key that describes the video color format.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - COMPLEXITY_SCOPE
```
public static final Format.Key<Scope<Integer>> COMPLEXITY_SCOPE
```
    Indicates the key of the encoding complexity range of the codec.
    You can pass this constant to (ohos.media.common.Format.Key) to obtain the property value.
    
    从以下版本开始:
    
    6
  - DURATION
```
public static final String DURATION
```
    Indicates a key that describes the content duration (in microseconds).
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - FRAME_INTERVAL
```
public static final String FRAME_INTERVAL
```
    Indicates a key that describes the I-frame interval.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - FRAME_RATE
```
public static final String FRAME_RATE
```
    Indicates a key that describes the video frame rate.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - FRAME_RATE_SCOPE_FOR_SPECIFIC_SIZE
```
public static final Format.Key<Scope<Double>> FRAME_RATE_SCOPE_FOR_SPECIFIC_SIZE
```
    Indicates the key of the frame rate range supported by the codec for a specific video size.
    You can pass this constant to (ohos.media.common.Format.Key, ohos.media.image.common.Size) to obtain the property value.
    
    从以下版本开始:
    
    6
  - HEIGHT
```
public static final String HEIGHT
```
    Indicates a key that describes the video height.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - HEIGHT_ALIGNMENT
```
public static final Format.Key<Integer> HEIGHT_ALIGNMENT
```
    Indicates the key of the height alignment parameter of the codec. The aligned video height must be a multiple of the parameter value.
    You can pass this constant to (ohos.media.common.Format.Key) to obtain the property value.
    
    从以下版本开始:
    
    6
  - HEIGHT_SCOPE
```
public static final Format.Key<Scope<Integer>> HEIGHT_SCOPE
```
    Indicates the key of the video height range supported by the codec.
    You can pass this constant to (ohos.media.common.Format.Key) to obtain the property value.
    
    从以下版本开始:
    
    6
  - IS_AUTOSELECT
```
public static final String IS_AUTOSELECT
```
    Indicates the key of whether the current stream is automatically selected.
    The value of this key is an integer. A non-zero value indicates that the current stream is automatically selected, which is true by default.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - IS_DEFAULT
```
public static final String IS_DEFAULT
```
    Indicates the key of whether the current media stream is selected by default.
    The value of this key is an integer. A non-zero value indicates that the current media stream is selected by default, which is true by default.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - IS_FORCED_SUBTITLE
```
public static final String IS_FORCED_SUBTITLE
```
    Indicates the key of whether the current subtitle stream is forcibly displayed.
    The value of this key is an integer. A non-zero value indicates that the current subtitle stream is forcibly displayed, which is true by default.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - KEY_BIT_RATE_SCOPE
```
public static final String KEY_BIT_RATE_SCOPE
```
    Indicates the key of a bit rate range.
    The value is of the Scope<Integer> type.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - KEY_FRAME_RATE_SCOPE
```
public static final String KEY_FRAME_RATE_SCOPE
```
    Indicates the key of a frame rate range.
    The value is of the Scope<Integer> type.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - KEY_HEIGHT_SCOPE
```
public static final String KEY_HEIGHT_SCOPE
```
    Indicates the key of a height range.
    The value is of the Scope<Integer> type.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - KEY_SAMPLE_RATE_LIST
```
public static final String KEY_SAMPLE_RATE_LIST
```
    Indicates the key of a sampling rate list.
    The value is of the List[] type.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - KEY_SAMPLE_RATE_SCOPE
```
public static final String KEY_SAMPLE_RATE_SCOPE
```
    Indicates the key of a sampling rate range.
    The value is of the Scope<Integer>[] type.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - KEY_WIDTH_SCOPE
```
public static final String KEY_WIDTH_SCOPE
```
    Indicates the key of a width range.
    The value is of the Scope<Integer> type.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - LANGUAGE
```
public static final String LANGUAGE
```
    Indicates the key of a language type.
    The value of this key is a string. The value eng represents English, chi represents Chinese, and und represents an unknown language type.
    
    从以下版本开始:
    
    4
    
    另请参阅:
    
    常量字段值
  - MAX_HEIGHT
```
public static final String MAX_HEIGHT
```
    Indicates a key that describes the maximum video height supported by a decoder.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - MAX_INPUT_SIZE
```
public static final String MAX_INPUT_SIZE
```
    Indicates a key that describes the maximum input buffer size.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - MAX_INSTANCES
```
public static final Format.Key<Integer> MAX_INSTANCES
```
    Indicates the key of the maximum number of codec instances that can run concurrently.
    You can pass this constant to (ohos.media.common.Format.Key) to obtain the property value.
    
    从以下版本开始:
    
    6
  - MAX_WIDTH
```
public static final String MAX_WIDTH
```
    Indicates a key that describes the maximum video width supported by a decoder.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - MIME
```
public static final String MIME
```
    Indicates a key that describes the Multipurpose Internet Mail Extensions (MIME) media type.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - MIME_AUDIO_MSGSM
```
public static final String MIME_AUDIO_MSGSM
```
    Indicates the MSGSM audio type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - MIME_VIDEO_AV1
```
public static final String MIME_VIDEO_AV1
```
    Indicates a video MIME type.
    
    从以下版本开始:
    
    3
    
    另请参阅:
    
    常量字段值
  - SAMPLE_RATE
```
public static final String SAMPLE_RATE
```
    Indicates a key that describes the sampling rate.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_AVC
```
public static final String VIDEO_AVC
```
    Indicates a key that describes the Advanced Video Coding (AVC) MIME type.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_DOLBY_VISION
```
public static final String VIDEO_DOLBY_VISION
```
    Indicates the Dolby Vision video type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_H263
```
public static final String VIDEO_H263
```
    Indicates the H.263 video type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_HEVC
```
public static final String VIDEO_HEVC
```
    Indicates the HEVC video type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_MPEG2
```
public static final String VIDEO_MPEG2
```
    Indicates the MPEG-2 video type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_MPEG4
```
public static final String VIDEO_MPEG4
```
    Indicates the MPEG-4 video type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_RAW
```
public static final String VIDEO_RAW
```
    Indicates the RAW video type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_VP8
```
public static final String VIDEO_VP8
```
    Indicates the VP8 video type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - VIDEO_VP9
```
public static final String VIDEO_VP9
```
    Indicates the VP9 video type represented by an MIME string.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
  - WIDTH
```
public static final String WIDTH
```
    Indicates a key that describes the video width.
    
    从以下版本开始:
    
    1
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - Format
```
public Format()
```
    Default constructor used to create a Format instance.
    
    从以下版本开始:
    
    1
  - Format
```
public Format(HashMap<String,Object> nativeMap)
```
    A constructor used to create a Format instance.
    
    参数:
    
    nativeMap - Indicates key-value pairs of metadata.
    
    从以下版本开始:
    
    1
  - Format
```
public Format(Map<String,Object> map)
```
    A constructor that creates a Format instance.
    
    参数:
    
    map - Indicates metadata key-value pairs.
    
    从以下版本开始:
    
    3
- 方法详细资料
  - getFormatMap
```
public HashMap<String,Object> getFormatMap()
```
    Obtains all metadata.
    
    返回:
    
    Returns the obtained metadata.
    
    从以下版本开始:
    
    1
  - putIntValue
```
public void putIntValue(String key,
                        int value)
```
    Sets metadata of the integer type.
    
    参数:
    
    key - Indicates a metadata key.
    
    value - Indicates a metadata value, which is an integer.
    
    从以下版本开始:
    
    1
  - putLongValue
```
public void putLongValue(String key,
                         long value)
```
    Sets metadata of the long integer type.
    
    参数:
    
    key - Indicates a metadata key.
    
    value - Indicates a metadata value, which is a long integer.
    
    从以下版本开始:
    
    1
  - putFloatValue
```
public void putFloatValue(String key,
                          float value)
```
    Sets metadata of the floating-point type.
    
    参数:
    
    key - Indicates a metadata key.
    
    value - Indicates a metadata value, which is a floating-point number.
    
    从以下版本开始:
    
    1
  - putDoubleValue
```
public void putDoubleValue(String key,
                           double value)
```
    Sets metadata of the double floating-point type.
    
    参数:
    
    key - Indicates a metadata key.
    
    value - Indicates a metadata value, which is a double floating-point number.
    
    从以下版本开始:
    
    1
  - putStringValue
```
public void putStringValue(String key,
                           String value)
```
    Sets metadata of the character string type.
    
    参数:
    
    key - Indicates a metadata key.
    
    value - Indicates a metadata value, which is a string.
    
    从以下版本开始:
    
    1
  - setObjectFormat
```
public void setObjectFormat(String key,
                            Object value)
```
    Sets metadata of the character Object type. This interface is not suggested to use, try putObjectValue(java.lang.String,java.lang.Object).
    
    参数:
    
    key - Indicates a metadata key.
    
    value - Indicates a metadata value, which is an Object.
    
    从以下版本开始:
    
    1
  - putObjectValue
```
public void putObjectValue(String key,
                           Object value)
```
    Sets metadata of the character Object type.
    
    参数:
    
    key - Indicates a metadata key.
    
    value - Indicates a metadata value, which is an Object.
    
    从以下版本开始:
    
    1
  - hasKey
```
public boolean hasKey(String key)
```
    Checks whether a metadata key exists.
    
    参数:
    
    key - Indicates a metadata key.
    
    返回:
    
    Returns true if the key exists; returns false otherwise.
    
    从以下版本开始:
    
    1
  - getIntValue
```
public int getIntValue(String key)
```
    Obtains a metadata value of an integer type.
    
    参数:
    
    key - Indicates a metadata key.
    
    返回:
    
    Returns the integer value.
    
    抛出:
    
    NullPointerException - if the key does not exist or the value for the key is null.
    
    ClassCastException - if the value for the key is not type of int.
    
    从以下版本开始:
    
    1
  - getLongValue
```
public long getLongValue(String key)
```
    Obtains a metadata value of the long integer type.
    
    参数:
    
    key - Indicates a metadata key.
    
    返回:
    
    Returns the long integer value.
    
    抛出:
    
    NullPointerException - if the key does not exist or the value for the key is null.
    
    ClassCastException - if the value for the key is not type of long.
    
    从以下版本开始:
    
    1
  - getFloatValue
```
public float getFloatValue(String key)
```
    Obtains a metadata value of the floating-point type.
    
    参数:
    
    key - Indicates a metadata key.
    
    返回:
    
    Returns the floating-point value.
    
    抛出:
    
    NullPointerException - if the key does not exist or the value for the key is null.
    
    ClassCastException - if the value for the key is not type of float.
    
    从以下版本开始:
    
    1
  - getDoubleValue
```
public double getDoubleValue(String key)
```
    Obtains a metadata value of the double floating-point type.
    
    参数:
    
    key - Indicates a metadata key.
    
    返回:
    
    Returns the double floating-point value.
    
    抛出:
    
    NullPointerException - if the key does not exist or the value for the key is null.
    
    ClassCastException - if the value for the key is not type of double.
    
    从以下版本开始:
    
    1
  - getStringValue
```
public String getStringValue(String key)
```
    Obtains a metadata value of the character string type.
    
    参数:
    
    key - Indicates a metadata key.
    
    返回:
    
    Returns the string value.
    
    抛出:
    
    NullPointerException - if the key does not exist or the value for the key is null.
    
    ClassCastException - if the value for the key is not type of string.
    
    从以下版本开始:
    
    1
  - getObjectValue
```
public Object getObjectValue(String key)
```
    Obtains a metadata value of the Object type.
    
    参数:
    
    key - Indicates a metadata key.
    
    返回:
    
    Returns the Object value.
    
    从以下版本开始:
    
    1
  - getFormatArrays
```
public Format.FormatArrays getFormatArrays()
```
    Creates a FormatArrays instance with formatMap key-value pairs.
    formatMap key-value pairs are in the (key1, value1), ..., (keyN, valueN) format, and the created FormatArrays instance has the following structure:
    keys: key1,key2, ... , keyN
    values: value1, value2, ... , valueN
    Notice this function would also convert byte[] value to a ByteBuffer value.
    
    返回:
    
    Returns a FormatArrays instance.
    
    从以下版本开始:
    
    1
  - toString
```
public String toString()
```
    Returns the encoded string representation of Format.
    
    覆盖:
    
    toString 在类中 Object
    
    返回:
    
    Returns the encoded string.
    
    从以下版本开始:
    
    4

类 Format

嵌套类概要

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

AAC_PROFILE

AUDIO_AAC

AUDIO_AC3

AUDIO_AMR_NB

AUDIO_AMR_WB

AUDIO_EAC3

AUDIO_FLAC

AUDIO_G711_ALAW

AUDIO_G711_MLAW

AUDIO_MPEG

AUDIO_OPUS

AUDIO_RAW

AUDIO_VORBIS

BITRATE_MODE

BIT_RATE

CAPTURE_RATE

CHANNEL

COLOR_MODEL

COMPLEXITY_SCOPE

DURATION

FRAME_INTERVAL

FRAME_RATE

FRAME_RATE_SCOPE_FOR_SPECIFIC_SIZE

HEIGHT

HEIGHT_ALIGNMENT

HEIGHT_SCOPE

IS_AUTOSELECT

IS_DEFAULT

IS_FORCED_SUBTITLE

KEY_BIT_RATE_SCOPE

KEY_FRAME_RATE_SCOPE

KEY_HEIGHT_SCOPE

KEY_SAMPLE_RATE_LIST

KEY_SAMPLE_RATE_SCOPE

KEY_WIDTH_SCOPE

LANGUAGE

MAX_HEIGHT

MAX_INPUT_SIZE

MAX_INSTANCES

MAX_WIDTH

MIME

MIME_AUDIO_MSGSM

MIME_VIDEO_AV1

SAMPLE_RATE

VIDEO_AVC

VIDEO_DOLBY_VISION

VIDEO_H263

VIDEO_HEVC

VIDEO_MPEG2

VIDEO_MPEG4

VIDEO_RAW

VIDEO_VP8

VIDEO_VP9

WIDTH

构造器详细资料

Format

Format

Format

方法详细资料

getFormatMap

putIntValue

putLongValue

putFloatValue

putDoubleValue

putStringValue

setObjectFormat

putObjectValue

hasKey

getIntValue

getLongValue

getFloatValue

getDoubleValue

getStringValue